CVE-2019-5434
CRITICAL EXPLOITED NUCLEIrevive_adserver < 4.2.0 - Remote Code Execution via XML-RPC Unserialize
Title source: llmExploitation Summary
CVE-2019-5434 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 1 public exploit from researchers including crlf. A Nuclei detection template is also available.
AI-analyzed exploit summary This exploit leverages PHP object injection in Revive Adserver to achieve remote code execution by crafting a malicious serialized payload sent via XML-RPC to the adxmlrpc.php endpoint. It writes arbitrary PHP code to a file in the plugins directory, enabling RCE.
Description
An attacker could send a specifically crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. Such vulnerability could be used to perform various types of attacks, e.g. exploit serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third party websites. This vulnerability was addressed in version 4.2.0.
Exploits (1)
This exploit leverages PHP object injection in Revive Adserver to achieve remote code execution by crafting a malicious serialized payload sent via XML-RPC to the adxmlrpc.php endpoint. It writes arbitrary PHP code to a file in the plugins directory, enabling RCE.
Nuclei Templates (1)
http.favicon.hash:106844876 || http.title:"revive adserver"
icon_hash=106844876 || title="revive adserver"
References (4)
Scores
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H